Organs? Components of the cardiovascular system? Things in the body? You have to be more specific.
Mammals have 4-chambered hearts and one pair (2 total) of lungs.
Fish and worms have hearts, no lungs. So does a deck of cards.
Earthworm.
b.
yes, the hearts atria is bigger because its leads out the body from the lungs.
They have enlarged hearts and lungs
pumanary artery
There is no such mammal.
You can listen to people's hearts, lungs, gut etc with it
dont smoke and drink
We have hearts, lungs, digestive systems, and brains.
To protect vital organs, like the lungs and hearts